COMPUTERIZED DEVICE FOR HIGH-SPEED CHARGE OF STORAGE BATTERY WITH ASYMMETRIC CURRENT Russian patent published in 2006 - IPC H02J7/10 

FIELD: electrical engineering.

SUBSTANCE: proposed device built around charge-discharge pulse-width modulated converters and designed for high-speed charge of NiCd, NiMH ventilated half-sealed or fully sealed storage batteries, as well as Li-Ion batteries rated at voltage higher than, equal to, or lower than supply voltage of device functions so that when battery is connected to this device, type of battery is automatically recognized and charge algorithm suited to this very type of battery is chosen. Device has chosen-algorithm control circuit and power equipment control circuit. Control unit in the form of single-chip micro[processor generates signals in compliance with charge algorithm for controlling high-frequency pulse-width modulated converters. Storage battery connected to charge pulse-width modulated converters functions as load and also as power supply for discharge pulse-width modulated converter. Signal picked off current transducer is supplied to single-chip microprocessor and the latter specifies and maintains desired level of charge and discharge current in compliance with charge algorithm. Signal arriving from battery voltage transducer is supplied to single-chip microprocessor for monitoring charging process and determining end-of-charge criteria.

EFFECT: enlarged functional capabilities of device.

1 cl, 1 dwg